What is the primary method by which materials such as O₂, CO₂ and nutrients are exchanged between the blood and surrounding tissues?

Question

Quizplus · Accepted Answer

Passive diffusion is the primary method by which materials such as O₂, CO₂ and nutrients are exchanged between the blood and surrounding tissues. This is because capillary walls are thin and permeable, allowing for the movement of small molecules and ions across the concentration gradient. Active transport, osmotic pressure, ultrafiltration and reabsorption, and bulk flow also play roles in capillary exchange, but are not the primary method of exchange.

What Is the Primary Method by Which Materials Such as O2

What Is the Primary Method by Which Materials Such as O₂